[Bug c/86174] Poor vectorization/register allocation with omp simd, FMA

[amonakov at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86174

Alexander Monakov <amonakov at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |amonakov at gcc dot gnu.org

--- Comment #1 from Alexander Monakov <amonakov at gcc dot gnu.org> ---
It might be useful to note that what the testcase "wants" to happen is for the
compiler to notice that the temporary array 'double C[Si][Sk]' does not need to
live in memory - ideally it would correspond to 8 256-bit (or 4 512-bit)
registers.